@media screen and (max-width:1920px) {
  .nav-link{
    font-size: 20px;
  }
  .rvrjc{
    width: 40%;
    height: 60px;
  }
}
@media screen and (max-width:1440px){
    .nav-link{
        font-size: 16px;
    }
}
@media screen and (max-width:1080px) {
  .nav-link {
    font-size: 14px;
  }
  .rvrjc{
    width: 60%;
    height: 45px;
  }
  .im{
    width: 11%;
    height: 45px;
  }
}